Dual-color and near-infrared electrochromic poly(amide-imide)s with redox-stable bis(triphenylamine) moieties

Key Points

• The materials display dual-color electrochromism with potential near-infrared applications.
• Characterization reveals redox stability of the bis(triphenylamine) moieties under test conditions.
• Synthesis involved designing polyamide-imide polymers incorporating specific electrochromic units.
• These findings support the idea that combining different chromophores can enhance device performance and application scope.